The Barrier filter cartridge uses the latest technology in water treatment. Its equipped with efficient components and materials. However, the cartridge naturally wears down and in order to obtain good filtration results, it is essential to change the cartridge on a regular basis. High-quality coconut activated carbon cleanses water of active chlorine, organic and organochlorine impurities, pesticides, and petroleum products, Lead, Mercury, Copper, Benzene, Cadmium, Chloroform and Surfactant. Also this cartridge eliminates bad smell and taste. The treatment of activated carbon with silver prevents the possibility of bacterial reproduction within a filter. High-efficient exchange resin cleanses water of ions and toxic metals, and decreases hardness of water.